Milanic's reign at Elland Road lasted just 32 days and six winless games, but the 46-year-old has insisted that he is still employed by the Championship club.
"My contract was not terminated, I'm on paid leave," the Yorkshire Evening Post quotes him as saying.
"During this time I must be ready all the time to once again take over the team, if requested by the owner. My contract continues to run and I'm on vacation. I signed for two years and I will not terminate my contract.
"Cellino said I'm a loser? He should look at my CV. In six games, I made a big step forward. Just before my last match I could hear praises from all sides how compact Leeds is now, how the situation is improving."
Academy manager Neil Redfearn has been promoted to head coach following his stint as caretaker boss earlier this season.